Pump-sheath



(No Model.)

H. SPRINKEL.

PUMP SHEATH. Y No. 245,323. Patented Aug. 9,1881.

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NrTED STATES PATENT OEEICE.

HENRY SPRINKEL, OF COOPER, ILLINOIS.

PUMP-SHEATH.

SPECIFICATION forming part of Letters Patent No. 245,323, dated August 9, 1881.

Application tiled March 30, 1881.

To all whom it may concern.:

Be it known that I, HENRY SPRINKEL, a citizen ofthe United States, residing in the town of Cooper, in the county of Sangamon and State of Illinois, have invented a new and useful Anti-Freezing Pump Sheath; and I. hereby declare the following to be atull, clear, and exact description ot' the construction and operation of the same, reference being had to the accompanying drawings, making a part of this specilication, in which- Figure l is a vertical projection; Fig. 2, a vertical section, Fig. 3, a vertical projection and section combined, and Fig. 4 a horizontal section below the pump-spout.

Letters ot' reference in the drawings are as follows:

A indicates air-cavity in platform. C indicates outside of pump-sheath. S indicates the pump-stock. P indicates the platform. a a indicate air-cavities in sheath. b b indicate the furring-strips between the pump stock and outer part of sheath. d indicates the cap of sheath.

The sheath is constructed by casing up the stock of the pump from below the lower side of the platform P a few inches to eight inches above the spout, where the water constantly stands. The casing will be co-vered at the top by the cap d, and separated from the stock S one inch by the strips b I), and be entirely airtight, except at the bottom under the platform P, which will be left open. Ot' the furringstrips b b, one in the middle of each side of the stock S will end five inches below the cap d, so as to allow a channel for the easy passage of air from the air-space on one side ofthe middle strip to the air-space on the other side. The strips at the corners will run fully up to the cap.

(No model.)

This sheath may also be applied to round or other shaped pumps by making regular channels with the strips, as above, for the pas sage of air.

The platform P, as constructed with the airspace A, I do not claim in my invention, but it will be used with the sheath to prevent the warm air in the well from eomingin close contact with that outside and much lower in temperature.

The result 1 .obtain from'the sheath is the keeping ot' the water in the pump-stock at almost a constant temperature, so that it will not freeze during cold weather. This I do by the self-action of the air in the well, which is alwaysmuch warmer during cold weather than the outer atmosphere. The warm air in the well rises, and passing up the air-spaces a a, in the sheath grows cool by being in contact with colder substance, and then sinks to give place to another body ot' warm air. In that way a regular movement will be obtained, as indicated by the arrows, in the air-spaces a. ci in Fig. 3. Bythat means the pum p-stock will be kept warm, so that it will not fall in tein- 1 perature below 320.

What I claim as iny'invention, and desire to secure by Letters Pa ent, is-

In combination with a pump-stock, a sheath surrounding said stock and forming air-pas sages which extend above the water in the stock and are closed at their upper ends,where by a circulation ofthe air in the well is maintained and water in the stock protected from freezing.

HENRY SPRINKEL.

Witnesses:

W. N. WILT, J AMEs DOUGHERTY. 

